In the /mdk/bootimage directory you can find the mkBootImage.sh script that generates the bootimage for PXE and Etherboot standard. The bootimages will be stored in /m23/tftp/ as m23pxeinstall (PXE kernel), initrd.gz (initial ramdisk for PXE) and m23install (Etherboot). To generate the Etherboot files you need to install mknbi.
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dodger
2018-05-08